<%--
  Created by IntelliJ IDEA.
  User: oldliu
  Date: 2021/3/22
  Time: 10:22
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
    <%
        request.setAttribute("msg","data in request");
        session.setAttribute("msg","data in session");
        application.setAttribute("msg","data in application");
        request.getRequestDispatcher("/B.jsp").forward(request,response);
    %>
</head>
<body>

</body>
</html>
